[jira] [Created] (ARROW-4711) [Plasma] enhance plasma client interfaces to work with multiple objects

["Zhijun Fu (JIRA)" <ji...@apache.org>]

Zhijun Fu created ARROW-4711:
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             Summary: [Plasma]  enhance plasma client interfaces to work with multiple objects
                 Key: ARROW-4711
                 URL: https://issues.apache.org/jira/browse/ARROW-4711
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++ - Plasma
            Reporter: Zhijun Fu


Right now the Delete() interface in plasma client supports deleting multiple objects in a single shot, so that we can save IPCs (inter-processing communication) between plasma clients and plasma store. This reduces latency for plasma clients, and also improve the actual throughput for plasma store.

I made a simple prototype for changing Release() function as well, when batching release 10 objects in a single IPC, it only takes about 1/6 of the time compared with using 10 separate IPCs. Also from profiling, processing IPCs takes a lot of CPU cycles in plasma store currently, as UNIX domain socket processing needs to go through kernel, thus batching multiple IPCs into a single one should greatly improve the plasma store performance as well.

 

This change mostly applies to Release(), Seal(), and Create() interfaces.



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